Inventor · disambiguated record
Kin Yu Wong
Also filed as: WONG KIN YU
17 granted patents·3 pending applications·94 citations·filing 2002–2024
91Inventor score
Files withDEFOND ELECTECH CO LTD9DEFOND COMPONENTS LTD5DONGGUAN CHEN DA APPLIANCE CO LTD3DEFOND MFG LTD2DEFEND ELECTECH CO LTD1
Top patents by PatentIndex Score
20 records- 0190US7186940B1Electrical switchDEFOND COMPONENTS LTD·Filed 2005·Granted Mar 6, 2007·24 cites·12 claims
- 0283US6812425B1Locking trigger switch mechanismDEFOND COMPONENTS LTD·Filed 2003·Granted Nov 2, 2004·27 cites·14 claims
- 0380US10497523B2Electrical switch for an electrical device and sealing assembly for an electrical switchDONGGUAN CHEN DA APPLIANCE CO LTD·Filed 2017·Granted Dec 3, 2019·2 cites·18 claims
- 0473US7754989B2Electrical switchDEFOND COMPONENTS LTD·Filed 2007·Granted Jul 13, 2010·7 cites·4 claims
- 0570US6989503B2Power tool trigger assemblyDEFOND COMPONENTS LTD·Filed 2004·Granted Jan 24, 2006·15 cites·9 claims
- 0668US10965133B2Battery pack system for electrically connecting a battery pack to a machineDONGGUAN CHEN DA APPLIANCE CO LTD·Filed 2017·Granted Mar 30, 2021·2 cites·5 claims
- 0764US2020090886A1Electrical switch for an electrical device and sealing assembly for an electrical switchDEFOND ELECTECH CO LTD·Filed 2019·Application pending·0 cites
- 0860US6710277B1Electrical switchDEFOND MFG LTD·Filed 2002·Granted Mar 23, 2004·10 cites·11 claims
- 0957US11651915B2Electrical switch deviceDEFOND ELECTECH CO LTD·Filed 2022·Granted May 16, 2023·0 cites·9 claims
- 1054US6861605B2Electrical slide switchDEFOND MFG LTD·Filed 2002·Granted Mar 1, 2005·7 cites·8 claims
- 1153US2025285819A1Electrical switch unit for electrical deviceDEFOND ELECTECH CO LTD·Filed 2024·Application pending·0 cites
- 1252US2024191892A1Air purifierDEFOND ELECTECH CO LTD·Filed 2023·Application pending·0 cites
- 1351US12205787B2Snap-action type switchDEFOND ELECTECH CO LTD·Filed 2022·Granted Jan 21, 2025·0 cites·11 claims
- 1447US11823856B2Contact lever assembly for use with an electrical switchDEFOND ELECTECH CO LTD·Filed 2020·Granted Nov 21, 2023·0 cites·24 claims
- 1545US10418195B2Contact lever for use in an electrical switch assemblyDONGGUAN CHEN DA APPLIANCE CO LTD·Filed 2018·Granted Sep 17, 2019·0 cites·9 claims
- 1644US11367577B2Locking system for use with a trigger assembly of an electrical deviceDEFOND ELECTECH CO LTD·Filed 2020·Granted Jun 21, 2022·0 cites·12 claims
- 1743US10685795B2Locking system for use with a trigger assembly of an electrical deviceDEFOND ELECTECH CO LTD·Filed 2018·Granted Jun 16, 2020·0 cites·9 claims
- 1842US7723632B2Electrical switchDEFOND COMPONENTS LTD·Filed 2007·Granted May 25, 2010·0 cites·13 claims
- 1941US11257639B2Snap-action switch and method of assembling sameDEFEND ELECTECH CO LTD·Filed 2019·Granted Feb 22, 2022·0 cites·15 claims
- 2035US10978257B2Lock-off assembly for use in locking-off a trigger of an electrical deviceDEFOND ELECTECH CO LTD·Filed 2020·Granted Apr 13, 2021·0 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →